Which mechanism drives the formation of faceted ventifacts?

💡 Explanation

Wind-driven particle abrasion causes ventifact creation. Particle bombardment acts via aeolian deflation, because repeated impacts erode exposed rock faces. Therefore, abrasion is the main mechanism, rather than freeze-thaw which requires moisture and temperature fluctuations, not aridity.

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• Which phenomenon causes the formation of patterned ground in Arctic regions underlain by permafrost?